"Every ingredient we use here is nothing special," Xu said.

The scientists said they achieved a storage density of 10Tb (125GB) per square inch, which is 15 times the density of past solutions, with no defects. With this density, the data stored on 250 DVDs could fit on a surface the size of a U.S. quarter, which is 25.26 millimeters in diameter, the researchers said. It might also be possible to achieve a high-definition picture with 3-nanometer pixels, potentially as large as a stadium JumboTron, Xu said. Another possibility is more dense photovoltaic cells that capture the sun's energy more efficiently.

Russell and Xu's approach differs from how other researchers have been trying to increase storage density. Most have been using optical lithography, which sends light through a mask onto a photosensitive surface. That process creates a pattern to guide the copolymers into assembling.

The new technology could create chip features just 3nm across, far outstripping current microprocessor manufacturing techniques, which at their best create features about 45nm across. Photolithography is running into basic barriers to achieving greater density, and the new approach uses less environmentally harmful chemicals, Xu said. But actually applying the technique to CPUs would pose some challenges, such as the need to create random patterns on a CPU, Xu said.

Among other things, such a leap ahead in storage density could alter either the amount of content that a person could carry with them or the quality of media delivered on discs, said Nathan Brookwood, principal analyst at Insight64. For example, it might allow movies to turn into holograms, he said.